Carbon dioxide and oxygen fluxes were measured in 0.2 m2 enclosures placed at the water sediment interface in the SW lagoon of New Caledonia. Experiments, performed at several stations in a wide range of environments, were carried out both in darkness to estimate respiration and at ambient light, to assess the effects of primary production. The community respiratory quotient (CRQ = CO2 production rate/02 consumption rate) and the community photosynthetic quotient (CPQ= gross O2 production rate/gross CO2 consumption rate) were calculated by functional regressions. The CRQ value, calculated from 61 incubations, was 1.14 (S.E. 0.05) and the CPQ value, obtained from 18 incubations, was 1.03 (S.E. 0.08). The linearity of the relationship between the O2 and the CO2 fluxes suggests that these values are representative for the whole lagoon

Sites: 1. Sainte-Marie, 2. Sèche Croissant, 3. Récif Mbere, 4. Récif Aboré, 5. Rocher à la Voile, 6. Baie Maa, 7. Baie Papaye. In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Lavigne and Gattuso, 2011) was used to compute a complete and consistent set of carbonate system variables, as described by Nisumaa et al. (2010). In this dataset the original values were archived in addition with the recalculated parameters (see related PI).

Supplement to: Clavier, Jacques; Boucher, Guy; Garrigue, Claire (1994): Benthic respiratory and photosynthetic quotients in a tropical lagoon. Comptes Rendus de l'Académie des Sciences - Series III - Sciences de la Vie, 317, 937-942